33421202406 has 24 divisors (see below), whose sum is σ = 72460210680. Its totient is φ = 11133076896.

The previous prime is 33421202329. The next prime is 33421202447. The reversal of 33421202406 is 60420212433.

33421202406 is a `hidden beast` number, since 3 + 34 + 21 + 202 + 406 = 666.

It is a super-2 number, since 2×33421202406² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33421202406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582151 + ... + 636978.

It is an arithmetic number, because the mean of its divisors is an integer number (3019175445).

Almost surely, 2^33421202406 is an apocalyptic number.

33421202406 is an abundant number, since it is smaller than the sum of its proper divisors (39039008274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33421202406 is a wasteful number, since it uses less digits than its factorization.

33421202406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220660 (or 1220657 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 33421202406 its reverse (60420212433), we get a palindrome (93841414839).

The spelling of 33421202406 in words is "thirty-three billion, four hundred twenty-one million, two hundred two thousand, four hundred six".